Stop mechanism.



J. F. MCFERRAN.

STOP MECHNISM APPLICATION FILED OCT. 22, l9l5l Paiented Apnl, 1916.

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E] n vanto/z.

Chroma JOHN F. JICFERRAN, OF EVANSVILLE, INBINA.

STP MECHANISM.

Specification of Letters latent.

Patented lftpr. il S. MM@

Application filed October 22, 9l5. YSerial No. 57,318.

To all wlw/1iy '15 muy concern.'

lle it known that l, Jeux F. ltlclninnvrr, a citizen of the United States, residing at llvaiisville. in the` county of lvanderliui'g and State ot' lndiana, have invented certain new and useful Improvements in StopMechanisui; and l do hereliy declare the following,r to he a full. clear, and exact description of the invention, such as will enable others skilled in thev art to which it appertains to make and use the saine.

This invention relates to mechanism for operating the stop valves ot' steam engines and other motors from a distance; and it consists in the novel construction and cornliination ofthe parts hereinafter fully described and claimed.

VIn the drawings, Figure l is a side view of a stop mechanism constructed according to this invention. Q is a plan view of a portion of the saine.

The stop valve or regulating:r valve 2 of the engine is of any approved construction provided with a revoluhle spindle 3 for operating it. chain l or other similar flexihle connection is attached to and wound upon the spindle 25 or upon a wheel or disk secured on the spindle, and a weight is connected to the `free end of the chain. rlhis weight (i slides vertically in a pipe 'i' oi other similar tubular support which is secured in the engine room. )L trigger 8 is provided and is adapted to rest crosswise on the top of the tubular support 'i' and engage with the chain 4l.

'llie chain and weight ,are provided with a ring l0 or other suitable means tor engagincr very loosely with the middle part of the trigger so that the weight is normally supported h v the trigger and tho trigger has a curved portion 1; at one cud which rests ou the edge ol' the support at one side '.lhe other end of the triggerhas a projecting.r handle and a stop ll, and' ol the tube.

the stop ll engages with the opposite side of the tubel and rests on it so that the curved end does not slide oll' the support. Awire or cord l5 is connected to the trigger handle lo which projects beyond the support, and this wire is attached to one arm of a bellcrank lever 17.

The hell-crank lever is pivoted by a pin 1S to a bracket lil secured to the wall Q0 of the engine room. A wire or cord 21 is attached to the other arin of the hell-crank leverand passes through a hole in the wall and is supported inside the mill room or workshop hy brackets 22 secured to the floor joists or in any other convenient way. This wire 2l is provided 'with handles Q3 at any convenient .points or. its length.

When the hell-crank .lever is moved by one ot' the handles in the direction of the arrow in Figure l. the projecting' handle ot' the trigger is raised so that its curved end portion slides ofi' the support and releases the weight. rl`he 'descending weight revolves the valve spindle so as to close the valve and stop the engine. The chain is rewound on the valve spindley by means of' a hand wheel 52st secured on the valve spindle.

Any other approved means niay he used for operating` the trigger from a distance hesides the wires and hell-crank lever hereinbefore described.

ll'hat l claini is:

'ln a stop mechanism, a valve, a flexibley 'by the weight when released frein the support.

In testimony whereof I have alixed my signature.

JOHN F. MCFERRAN. 

